Bug #64131 [Opn->Nab]: rawurlencode appends char in conj.w. base64_decode when url-len isn't div. by 3

Edit report at https://bugs.php.net/bug.php?id=64131&edit=1 ID: 64131 Updated by: cataphract@php.net Reported by: post at kira-bianca dot eu Summary: rawurlencode appends char in conj.w. base64_decode when url-len isn't div. by 3 -Status: Open +Status: Not a bug Type: Bug Package: Scripting Engine problem Operating System: Linux PHP Version: 5.4.11 Block user comment: N Private report: N New Comment: you should be decoding with base64_decode(rawurldecode($url_e)) that is, you should apply the functions in the reverse order. See http://en.wikipedia.org/wiki/Inverse_function#Symmetry Previous Comments: ------------------------------------------------------------------------ [2013-02-02 11:18:08] post at kira-bianca dot eu Description: ------------ If I encode a URL with first the function base64_encode() and then with rawurlencode() are appended in the URL may 1 or 2 characters "%3D". If the length of the URL is divisible by 3, the result is okay. If the division of the URL length by 3 a remainder of 1, to the url "%3D%3D" attached With a remainder of 2, "%3D" attached. Test script: --------------- $dom = "domain"; for ($i=0; $i<10; $dom.='x', $i++){ $url = "$dom.ldk"; $url_e = rawurlencode(base64_encode("$url")); printf("%20s (len div 3 = %1d); encoded:%32s; decoded:%s\n", $url, strlen($url)%3, $url_e, rawurldecode(base64_decode($url_e))); } Expected result: ---------------- domain.ldk (len div 3 = 1); encoded: ZG9tYWluLmxkaw%3D%3D; decoded:domain.ldk\nÃÜ domainx.ldk (len div 3 = 2); encoded: ZG9tYWlueC5sZGs%3D; decoded:domainx.ldk7 domainxx.ldk (len div 3 = 0); encoded: ZG9tYWlueHgubGRr; decoded:domainxx.ldk domainxxx.ldk (len div 3 = 1); encoded: ZG9tYWlueHh4Lmxkaw%3D%3D; decoded:domainxxx.ldk\nÃÜ domainxxxx.ldk (len div 3 = 2); encoded: ZG9tYWlueHh4eC5sZGs%3D; decoded:domainxxxx.ldk7 domainxxxxx.ldk (len div 3 = 0); encoded: ZG9tYWlueHh4eHgubGRr; decoded:domainxxxxx.ldk domainxxxxxx.ldk (len div 3 = 1); encoded: ZG9tYWlueHh4eHh4Lmxkaw%3D%3D; decoded:domainxxxxxx.ldk\nÃÜ domainxxxxxxx.ldk (len div 3 = 2); encoded: ZG9tYWlueHh4eHh4eC5sZGs%3D; decoded:domainxxxxxxx.ldk7 domainxxxxxxxx.ldk (len div 3 = 0); encoded: ZG9tYWlueHh4eHh4eHgubGRr; decoded:domainxxxxxxxx.ldk domainxxxxxxxxx.ldk (len div 3 = 1); encoded:ZG9tYWlueHh4eHh4eHh4Lmxkaw%3D%3D; decoded:domainxxxxxxxxx.ldk\nÃÜ ------------------------------------------------------------------------ -- Edit this bug report at https://bugs.php.net/bug.php?id=64131&edit=1